summaryrefslogtreecommitdiff
path: root/src/arch/arm/v7/opdefs/b_A8818.d
blob: 5d696a371213a83c0c00276086d14be17c8a5862 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170

/* Chrysalide - Outil d'analyse de fichiers binaires
 * ##FILE## - traduction d'instructions ARMv7
 *
 * Copyright (C) 2014 Cyrille Bagard
 *
 *  This file is part of Chrysalide.
 *
 *  Chrysalide is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  Chrysalide is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
 */


@title B

@encoding(t1) {

    @half 1 1 0 1 cond(4) top(1) imm8(7)

    @syntax {c} <label>

    @conv {

        c = Condition(cond)
        label = SignExtend(top:imm8:'0', top, 32)

    }

    @hooks {

        link = handle_links_with_instruction_b_from_thumb
        post = post_process_branch_instructions

    }

    @rules {

        //if cond == '1110' then UNDEFINED;
        //if cond == '1111' then SEE SVC;
        call DefineAsReturn(1)

    }

}

@encoding(t2) {

    @half 1 1 1 0 0 top(1) imm11(10)

    @syntax <label>

    @conv {

        label = SignExtend(top:imm11:'0', top, 32)

    }

    @hooks {

        link = handle_links_with_instruction_b_from_thumb
        post = post_process_branch_instructions

    }

    @rules {

        //if InITBlock() && !LastInITBlock() then UNPREDICTABLE;
        call DefineAsReturn(1)

    }

}

@encoding(T3) {

    @word 1 1 1 1 0 S(1) cond(4) imm6(6) 1 0 J1(1) 0 J2(1) imm11(11)

    @syntax {c} ".W" <label>

    @conv {

        c = Condition(cond)
        label = SignExtend(S:J2:J1:imm6:imm11:'0', S, 32)

    }

    @hooks {

        link = handle_links_with_instruction_b_from_thumb
        post = post_process_branch_instructions

    }

    @rules {

        //if cond<3:1> == '111' then SEE "Related encodings";
        //if InITBlock() then UNPREDICTABLE;
        call DefineAsReturn(1)

    }

}

@encoding(T4) {

    @word 1 1 1 1 0 S(1) imm10(10) 1 0 J1(1) 1 J2(1) imm11(11)

    @syntax "b.W" <label>

    @conv {

        I1 = NOT(J1 EOR S)
        I2 = NOT(J2 EOR S)
        label = SignExtend(S:I1:I2:imm10:imm11:'0', S, 32)

    }

    @hooks {

        link = handle_links_with_instruction_b_from_thumb
        post = post_process_branch_instructions

    }

    @rules {

        //if InITBlock() && !LastInITBlock() then UNPREDICTABLE;
        call DefineAsReturn(1)

    }

}

@encoding(A1) {

    @word cond(4) 1 0 1 0 top(1) imm24(23)

    @syntax {c} <label>

    @conv {

        c = Condition(cond)
        label = SignExtend(top:imm24:'00', top, 32)

    }

    @hooks {

        link = handle_links_with_instruction_b_from_arm
        post = post_process_branch_instructions

    }

    @rules {

        call DefineAsReturn(1)

    }

}